[jira] [Created] (IGNITE-4265) Need to revisit compute grid checkpoints

[Anton Vinogradov (Jira)]

Yakov Zhdanov created IGNITE-4265:
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             Summary: Need to revisit compute grid checkpoints
                 Key: IGNITE-4265
                 URL: https://issues.apache.org/jira/browse/IGNITE-4265
             Project: Ignite
          Issue Type: Task
            Reporter: Yakov Zhdanov
            Priority: Minor


I. Shared fs checkpoint SPI seems to be totally wrong

Problems spotted in code

# Blocking IO API
# No locks or synchronization

Please see GridSharedFsCheckpointSpiMultiThreadedSelfTest

I would think of removing shared FS checkpoints and move to distributed cache.

II. Having the above I would do:
# Revisit checkpoints SPI/manager. I would probably replace it with checkoints processor using distributed cache(s)
# distributed caches can be configured in configuration or on the fly using templates. This needs to be elaborated further.
# org.apache.ignite.internal.managers.checkpoint.GridCheckpointManager#onSessionEnd seems to be handy for clean up and can be implemented with cache queries - session ID should be added to each entry
#



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